Finding the Fourth Proportional to 7,643,886.99, 11,466,232.25 and 1,964,149.71
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Solution
The fourth proportional to 7,643,886.99, 11,466,232.25 and 1,964,149.71 is: 2,946,327.80
Step by Step Solution
- Step 1: Write the proportion equation
7,643,886.99 : 11,466,232.25 = 1,964,149.71 : x - Step 2: Convert to fraction form
7,643,886.99/11,466,232.25 = 1,964,149.71/x - Step 3: Cross multiply
7,643,886.99x = 11,466,232.25 × 1,964,149.71 - Step 4: Simplify right side
7,643,886.99x = 22,521,396,738,809.40 - Step 5: Solve for x
x = 22,521,396,738,809.40/7,643,886.99 - Step 6: Final answer
x = 2,946,327.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.